William maurer



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WILLIAM MAURER, 0F NEW YORK, N. Y.

Speccation of Letters Patent No. 14,616, dated April 8, 1856.

To all whom t may concern.'

Be it known that I, VILLIAM MAURER, of the city, county, and State 0f New York, have invented a new and Improved Lock for Safes, Bank, Vault, and other Doors; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specication, in which- Figures 1, and 2, are side views of the tumblers of my improved lock. Fig. 3, is a view of the bolt. Fig. 4, is a transverse vertical section of the lock. Fig. 5, is a detached perspective view of the lever or crank by which the bit is turned. Fig. 6, is a detached perspective view of the bit. Figs. 7 and 8, are detached views of the lever by which the bolt catch is operated. Figs. 9, 10 and 11, are detached views of the bolt catch. Figs. 12, and 18 are interior views of the lock. Fig. 14, is adetached view of the key. l

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to a new and im'- proved lock for safes, bank vault and other doors.

The invention consists in the peculiar construction and arrangement of a series of tumblers, a bolt catch and bit, as will be presently fully shown and described.

A, Figs. 4, 12 and 13, represents the casing of the lock, constructed of metal, and B, represents a series of tumblers, any proper number being used, said tumblers working on a common pin or rod a, at the lower part of the casing. The tumblers B, are in the form of frames or they may be described as having their centers out out and a bit C, is fitted and works within them, the shaft of the bit having its bearings in the front and back plates of the casing A. The lower parts of the tumblers B, just below the bit C, have curved slots c, made through them, one slot through each tumbler. The slots are all of the same form and size. Each tumbler has a spring d, attached to it, the outer ends of the springs bearing against the sides of the casing, the spring of every alternate tumbler bearing against one side of the casing and the springs of the intermediate tumblers against the opposite side, as shown in Figs. 12 and 13. By this arrangement, one half of the tumblers are thrown in an opposite position to the others and the slots c, are consequently thrown outy u or right angular form, the upper ends of, j,

the slots extending. to the edges of the tumblers; the slots in every alternate tumbler are in a reverse position to .those in the intermediate tumblers as shown in Figs. 1 and 2, and these slots are made of varying lengths. f

D, represents the bolt which is fitted in the upper part of the casing A. The bolt D, has an elbow or right angular lslot f, made in its under side, as shown in Figs. 8, 12, and 13.

E, is a bolt catch, which ts in the upright portion of the slot f, in the bolt, and free from the slots in the tumblers, when the lock is in a locked state, as shown in Fig. 12. The catch being free or out of the upright portion of the slot f, and within the slots e, in the tumblers when the lock is in an unlocked state, see Fig. 3. The catch E, has a spring g, bearing against it, as shown clearly in Figs. 12 and 13. e

F, is a lever or arm, which works on a pin h, within the casing A. The outer end of this lever is directly underneath the catch E. .f

The operation will .be readily understood. Suppose the lock to be in a locked state, as shown in Fig. 12. To unlock the lock, the

catch E, must pass out of the upright porY tion of the slot f, in the bolt and into or through the upright portions of the slots c,l

in the tumblers B, and, of course the upright portions of the tumbler .slots must be brought in line with each other. To effect this, the tumblers B, are moved by turning the bit C, by means of a crank or lever A on the outer end of the shaft b, the tumblers being moved till the slots c, are in line, so that a key B', may be inserted in them, said key having receses or slots a', of varying length in its edges or sides, as shown in Fig. 14. When the key is inserted, the hand is taken from the crank or lever and the springs (l, of the tumblers will throw the tumblers in such positions, that the upright portions of the slots e, will be in line, as the slots or recesses a', in the key, are so made as to cause the slots e, in the several tumblers to assume the proper position. Vhen the upright portions of the slots e, are in line, the catch E, is thrown free from the upright portion of the slot f, in the bolt and into the slots e, in the tumblers, by the spring g, as shown in Fig. 13, and the lock is unlocked.

The lock is locked by merely turning the bit C, from right to left as indicated by the arrow, Fig. 13, the bit acting upon the arm or lever F, and causing it to throw the catch into the upright portion of the slot f, in the bolt when the upright portions of the slots e, come in line. When the ley B, is wit-hdrawn, the tumblers B, inust be previously brought in line by turning the bit C.

The above lock is extremely simple, not liable to get out of repair, may be cheaply WILLIAM MAURER.

Witnesses:

WVM. TUSCHE, JAMES F. BUCKLEY. 

